Tuning the velocity and flux of a low-velocity intense source of cold atomic beam

	Tuning the velocity and flux of a low-velocity intense source of cold atomic beam
	Chen, Shu; Li, Ying-Ying; Yan, Xue-Shu; Xue, Hong-Bo; Feng, Yan-Ying; Feng, YY (reprint author), Tsinghua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China.
刊名	CHINESE PHYSICS B
	2017
卷号	26 期号:11 页码:113703
关键词	Atomic Source Low-velocity Intensity Source (Lvis) Laser Cooling Light Polarization
ISSN号	1674-1056
英文摘要	We investigate experimentally and numerically the quantitative dependence of characteristics of a low-velocity intensity source (LVIS) of atomic beam on light parameters, especially the polarization of cooling laser along the atomic beam axis (pushing beam). By changing the polarization of the pushing beam, the longitudinal mean velocity of a rubidium atomic beam can be tuned continuously from 10 to 20 m/s and the flux can range from 3 x 10(8) to 1 x 10(9) atoms/s, corresponding to the maximum sensitivity of the velocity with respect to the polarization angle of 20 (m/s)/rad and the mean sensitivity of flux of 1.2 x 10(9) (atoms/s)/rad. The mechanism is explained with a Monte-Carlo based numerical simulation method, which shows a qualitative agreement with the experimental result. This is also a demonstration of a method enabling the fast and continuous modulation of a low-velocity intense source of cold atomic beam on the velocity or flux, which can be used in many fields, like the development of a cold atomic beam interferometer and atom lithography.
语种	英语
资助机构	National Natural Science Foundation of China [61473166, 41404146]
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6080]
专题	国家空间科学中心_空间科学部
通讯作者	Feng, YY (reprint author), Tsinghua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China.
推荐引用方式 GB/T 7714	Chen, Shu,Li, Ying-Ying,Yan, Xue-Shu,et al. Tuning the velocity and flux of a low-velocity intense source of cold atomic beam[J]. CHINESE PHYSICS B,2017,26(11):113703.
APA	Chen, Shu,Li, Ying-Ying,Yan, Xue-Shu,Xue, Hong-Bo,Feng, Yan-Ying,&Feng, YY .(2017).Tuning the velocity and flux of a low-velocity intense source of cold atomic beam.CHINESE PHYSICS B,26(11),113703.
MLA	Chen, Shu,et al."Tuning the velocity and flux of a low-velocity intense source of cold atomic beam".CHINESE PHYSICS B 26.11(2017):113703.